Vertically adjustable table



INVENTOR. 5, W075,

IQTTOQNEY.

biaiuisiiiRRiEtR April 3, 1951 J. E. WHITE VERTICALLY ADJUSTABLE TABLE Filed May 17, 1948 .of hard usage. On of my primary objects is toprovide an improved construction whereby the table -topis adjustable to different elevations,- by telescopic .end or leg assemblies, so built as'to be capable of Patented Apr. 3, 1951 N D STATES PATENT ,AOFFICBT 2,547,296 VERTICALLY ADJUSTABLE TABLE James E. White, Los Angela s, Calif.

Application May 17, 1948, Serial'No. 27,391

4 Claims. (oi. 311-39) 1 This invention has to do generally with improvements in tables, and is directed particularly to various features of construction and adjustability rendering the invention especially suitable for school or classroom tables, as well as other places where high strength and rigidity, along with adjustability, are required under conditions supporting all vertical loads, and resisting lateral .iorces Without impairment of the initial strength and rigidity of, the assemblies. Briefly, thiszobject is 'accomplishediby forming the end assem blies of vertically telescopic sheet metal sections, strengthened and guided in their telescopic rela- .-.;tion- -by-one or more interfltting rib and, recess Preferably, each supporting end 1 configurations. I assembly. .is made, to comprise upper and lower sheet metal sections, the frame of which is attached to the top structure of the table, while the lower section is attached or applied to 'a' pair of legs with-respect to which'the top structure is adjustable.

As will appear, the inventioniinay"advantageously employ a channel form beam, so arranged asto be attached to either or both the end bracket plates and upper telescopic panel section.

All the above mentioned features of the invention, as well as additional-objects and the details of a typical and illustrative embodiment, will be understood most clearly and-readily from the fol lowing detailed-descriptionotthe accompanying drawing, in which:

Fig. 1 is a perspective view of the tableqa porsidered generally as comprising aflat top carried by the end supporting assemblies II which, as previously indicatedjare characterized by their capacity for vertical adjustment, and the structurally strong relationship between th adjustable sections of the assemblies. 'As more particularly illustrated in Figs. 2 and 3, each assembly I l comprises a pair ofadjustable sheet metal panel sections l2 and .13 having such interfitting tion of the top being broken away toshow the shapes as will-afford the dual. advantages' of structural strength and rigidity, while maintaining the inner and upper section l2 in guided relation with the outer and lower section l3.. Preferably, though typically such reinforced and guided relation of the sections is efiected by deforming panel I 3 to provide throughout its length vertically extending ribs l4 -of substantially V- shaped v cross section and formingchannels which slidably receive the correspondingly shaped l'ribs 15- on the inner-panel section l 2 The" outer edges l5lof sectionlt are inwardly curved about the correspondingly turned and curved outer edges l6 ofthe inner'section [2, so thatthe two sections are confined against relative lateral movement as well as separation.

The end assemblies H are supported jbyflegs connected, bya longitudinal and center channel- 29 directly underlying the top and having a flange.

30 attached thereto and at 30! to the channel flanges, the bracketbein extended transversely of the table to support the top substantially across its width. The bracket has a pair of outer depending flanges 3| tapering upwardly toward the bracket extremities and attached by fasteners 32 to the outside of the panel l2. The bracket also has a central depending flange 33 attached by fasteners 34 to panel l2 at its outside, this flange being spaced at 33! from flanges 3| to accommodate the panel ribs I5.

Being supported on flanges 30 of the end brackets 29, the under surface of the table top between the flanges is elevated above the channel flanges 22. To give the intermediate extent of the table top, support on the channel, I may attach to the channel transverse members 23 corresponding in thickness to the bracket flanges 30.

Referring to Fig. 3, the panel sections 12 and I3 contain correspondingly spaced and alined openings 35 for reception of fasteners 36 by which the upper section 12, and therefore th table top, may be retained in any positioncf adjustment relative to the lower section I3. Accordingly, as at such time as it may be desirable to make adjustments of the table height,-it is only-required that the table top andconnected panels [2 be given the proper elevation, following which the insertion of the fasteners 36 will secure the parts in flxed and rigid condition.

I claim: 1. A table structure comprising a top, and vertically adjustable end supporting assemblies each including a pair of vertically elongated legs and .upper and lower vertically telescopic sheet metal sections extending between said legs, one sec- ,tion being formed to have a vertically extending rib interfitting within a vertically extending recess in the other section, the edges of said lower section being bent about said legs, a transverse .bracket plate member directly underlying said said top.

2. A table structure comprising a top, and vertically adjustable end supporting assemblies each including a pair of vertically elongated legs and upper and lower vertically telescopic sheet metal sections extending between said legs, one section being formed to have a vertically extending rib interfltting within a vertically extending recess in the other section, the edges of said lower section being bent about said legs, a transverse bracket plate directly underlying said top and having a depending flange attached to said upper section,

a beam extending longitudinally of the table directly beneath said top and attached to said bracket plate, and means attaching said bracket plate to the top, said sections having a vertically alined series of registerable openings for reception 7 or a fastener to retain the upper section in' difi'erent positions of adjustment.

3. A table structure comprisin a top, vertically adjustable end supporting assemblies each including upper and lower vertically telescopic sheet metal sections and a pair of elongated legs carried by and extending downwardly from the lower section, said lower section of each supporting assembly having a pair of opposite side portions bent about said legs, the upper section having a pair of opposite side portions bent to interengage with said side portions of the lower section and guide the sections for vertical telescopic movement, said bent side portions of one section extending about the bent side portions of the other section far enough to retain the sections against horizontal separation, and means connecting the upper section of each supporting assembly to said top.

4. A table structure comprising a top, vertically adjustable end supporting assemblies each including upper and lower vertically telescopic sheet metal sections and a pair of elongated legs carried by and extending downwardly from the lower section, said lower section of each supporting assembly having a pair of opposite lateral edge portions bent about saidlegs, the upper section having a pair of opposite lateral edge portions bent substantially in correspondence with said lateral edge portions of the lower section to interengage therewith and guide the sections for vertical telescopic movement, said bent lateral edge portions of one section extending about the bent lateral edge portions of the other section far enough to retain the sections against horizontal separation, and means connecting the upper section of each supporting assembly to said top, one of said sections having a plurality of vertically alined openings selectively registerable with an opening in the other section for reception of a fastener to retain the upper section in different positions of adjustment.

JAMES E. WHITE;

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date D. 140,122 Maynard et al Jan. 23, 1945 133,551 Thompson Dec. 3, 1872 242,804 Vanstone June 14, 1881 246,554 Probst Aug. 30, 1881 439,159 Jones et al Oct. 28, 1890 456,990 Hawley Aug. 4, 1891 561,779 Feely June 9, 1896 905,737 McCombe Dec. 1, 1908 1,276,713 Biedma Aug. 27, 1918 1,355,404 McKee Oct. 12, 1920 1,652,774 Fraser et a1 Dec. 3, 1927 1,734,889 Amsden Nov. 5, 1929 1,763,931 Konop June 17, 1930 1,792,673 Amstutz Feb. 17, 1931 1,875,635 Merrill Sept. 6, 1932 2,312,636 Froelich Mar. 2, 1943 2,342,631 I-Iillenbrand Feb. 29, 1944 2,368,748 Doty Feb. 6, 1945 

